Smart switch Sonoff SPM-Main
143-SPM-Main
will be applied in shopping cart
(min. 10€ purchase)
Main info
Warning: Last items in stock!
The Sonoff SPM-Main smart switch, which enables power consumption measurement and supports connectivity via both Ethernet and Wi-Fi. It can handle up to 128 channels - you can combine it with up to 32 SPM-4Relay switches (4 channels each), which are available for purchase separately. What's more, overload protection prevents damage to your devices. The product is also very easy to install.
Multiple applicationsThe SPM-Main switch will prove its worth in many different applications. For example, it will allow you to find out how much electricity your tenants use per month, or find out the energy consumption of a shopping center or office. The product will also prove useful in a server room or cryptocurrency mine - the overload protection function will allow you to avoid damaging certain equipment.
Reliable signal transmissionEnjoy the ability to connect devices. SPM-Main communicates with the cloud via Ethernet or Wi-Fi connectivity. It also connects to SPM-4Relay switches via RS-485, so it can provide stable transmission over long distances. Connection problems are a thing of the past!
Power consumption meterDo you want to check the changes in power consumption in each room in the office? Or do you care to know how much electricity is used by your tenants? With Sonoff it is possible! SPM-Main and SPM-4Relay switches allow you to precisely measure power consumption. You can find all the information in the eWeLink app. This allows you to check power consumption without leaving the house - just reach for your phone!
Overload protectionIncrease security in your server room and don't be afraid of damaging your devices. The switch offers an overload protection function. When you activate it, the equipment will automatically shut down when the current, voltage or power reaches the value indicated in the application. A load delay function is also available.
Supports up to 128 channelsOne SPM-Main module allows you to control up to 32 SPM-4Relay switches. What's more, each SPM-4Relay offers up to 4 independent channels with a maximum load of 20A each. This means that the SPM-Main can handle as many as 128 channels! This makes it ideal, for example, in a block of apartments, making it possible to check the energy consumption of tenants of rented apartments.
Additional facilitiesNow you can save the history of energy consumption measurements from the last 180 days. The switch is equipped with an SD card slot (8-32GB, SDHC). This allows you to export data conveniently and gives you the assurance that you won't lose any important information. Mounting the SPM-Main and SPM-4Relay switches won't cause you any problems either. You can easily mount them on the guide rail. Note: the SD card is not included in the kit.
SpecificationBrand Sonoff Model SPM-Main Color White Input 100-240V ~50/60Hz 50mA max. Wi-Fi 802.11 b/g/n 2.4GHz Material PC V0 Dimensions 142.5x90x66.5mm Compatible SD cards 8-32GB, SDHC
Dimensions and weights
Product codes
Photopoint offers free shipping for orders over 99 € delivered to Estonia. Take a look in the tab "Delivery" for a more precise delivery estimate.
For this product you can select the desired delivery method at the shopping cart:
Photopoint store Pick-up
Place your order from Photopoint web store and pick your goods up from one of Photopoint`s brick and mortar stores. The delivery to Photopoint store is free even for orders less than 99 €. You will be noticed by e-mail when your order is ready for pick-up.
The Photopoint stores are located in Tallinn and Tartu. See the exact locations from here.
Omniva parcel terminal
You can order the goods to one of the Omniva Parcel terminals. Choose the desired terminal at the shopping cart. As the shipment arrives to the selected terminal, you will be sent an SMS-notification with an unique code. Go to the terminal within a week, enter the code and take your package. It is as simple as that.
See Omniva Parcel terminal locations here.
SmartPOST parcel terminal
Did not find an Omniva terminal at suitable location? Try SmartPost. Choose the desired terminal at the shopping cart. As the shipment arrives to the selected terminal, you will be sent an SMS-notification with an unique code. Go to the terminal within a week, enter the code and take your package. This method actually works for all parcel terminals.
See SmartPOST parcel terminal locations here.
DPD parcel locker
Make sure you check out also the locations of DPD parcel lockers. These are located all over Estonia. The delivery is the same. As the shipment arrives to the selected locker, you will be sent an SMS with a unique code. Go to the locker, enter the code and take your package.
See DPD parcel locker locations here.
Smartpost Finland parcel terminal
SmartPOST Finland is the best way to order goods to Finland. These terminals work the same way as in Estonia. As the shipment arrives to the selected terminal in Finland, you will be sent an SMS-notification with an unique code. Go to the terminal, enter the code and take your package.
See SmartPOST Finland parcel terminal locations here.
Matkahuolto parcel service
Matkahuolto is easy way to order goods to Finland. These are located also in smaller Finnish towns. As the shipment arrives to the selected Matkahuolto outlet, you will be sent an SMS-notification or an e-mail. Go to the outlet, show your ID and take your package.
See Matkahuolto outlet locations here.
Omniva courier delivery
The courier will transport your goods from Photopoint straight to the provided address. The delivery will take place at workdays from 08:00 to 17:00. Hold your phone near you as the courier will call you prior to its arrival. Please make sure there is someone at the destination, eligible to receive the shipment.
The product can only be ordered from our online store and it takes from 4-7 working days for delivery within Estonia.